- Hydroalkoxycarbonylation of isobutylene with polyhydric alcohols in the presence of catalytic systems based on palladium compounds and tertiary phosphines
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The reaction of isobutylene hydroalkoxycarbonylation at low carbon monoxide pressures (≤2.0 MPa) with ethylene glycol and glycerol in the presence of catalytic systems based on Pd and mono- and bidentate organic phosphines has been studied. The effect of different conditions of the reaction in the presence of the Pd(Acac)2-PPh3-TsOH catalyst system on the ratio of the products, mono- and diglycolides (mono-, di-and triglycerides) of isovaleric acid has been investigated. The relative catalytic activity of a number of binary and ternary systems based on synthesized Pd(Acac)2, Pd(PPh3)4, and PdCl2(PPH3) 2 complexes has been determined. Pleiades Publishing, Ltd., 2012.
- Suerbaev,Chepaikin,Appazov,Dzhiembaev
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experimental part
p. 189 - 193
(2012/09/08)
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- Catalytic hydroxycarbonylation of isobutylene with carbon monoxide and polyhydric alcohols in the presence of the Pd(acac)2-PPh 3-TsOH system
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The reaction of isobutylene hydroalcoxycarbonylation with CO and polyhydric alcohols (ethylene glycol, glycerol) in the presence of the catalytic system Pd(aacac)2-PPh3-TsOH has been investigated. It was found that carbonylation of isobutylene with CO in the presence of ethylene glycol yields a mixture of mono-and diglycol esters of isovaleric acid, irrespective of the initial reactant ratio. During the hydroalcoxycarbonylation of isobutylene with glycerol, either mono- and di- or mono-, di-, and triglycerides of isovaleric acid are formed depending on the reactant ratio.
- Suerbaev,Chepajkin,Dzhiembaev,Appazov,Abyzbekova
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p. 345 - 347
(2008/04/03)
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